Persina Nature Park is unique for Bulgaria and the only one of its kind along the Bulgarian bank of Danube. It aims to conserve and restore the Danube wetlands, with particular emphasis on preserving the natural state of the numerous islands within the park's boundaries. The largest Bulgarian and fourth largest European Danube island is also located here — Persin Island, which gave the nature park its name. Its length is 15 km and its width reaches 6 km. Bird-watching spots have been made in the nature park and reserves. The EuroVelo 6 international cycling route also passes through the park.